I am new to Sound Booth and while playing around with some tracks I hit a few road blocks: First, I imported a recorded m4a track form my iTunes library and I can see the waveform and the levels move when playing but I could not hear any sound. This was yesterday, when opening it today, I can here it fine with nothing what so ever changed in the sound Prefs or anywhere else. Just curious as to what is making it play in case this happens again.